Using some internet translators I have summarized the info as follows:

Game infoThis is a fan project to probably the most successful adventure of all: Sam & Max -Hit the Road! Since Sam & Max 2 was cancelled by LA (LucasArts), we decided to develop a fan project to this Adventure. It is not intended for sale; it will be Freeware. Developer team: TRAM - The Retro Adventure Makers from the project of TRAM: DOTT2

StoryFour months after Sam & Max tracked down the Yeti, they decide to finally go on a vacation. Right before they lock the door...the telephone rings. Unexpectedly, it is the Commissioner who calls with a new idiotic case. And so a further adventure with both policemen begins!